CA962689A - Benzopyran derivatives - Google Patents

Benzopyran derivatives

Info

Publication number
CA962689A
CA962689A CA142,944A CA142944A CA962689A CA 962689 A CA962689 A CA 962689A CA 142944 A CA142944 A CA 142944A CA 962689 A CA962689 A CA 962689A
Authority
CA
Canada
Prior art keywords
benzopyran derivatives
benzopyran
derivatives
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA142,944A
Other versions
CA142944S (en
Inventor
Hugh Cairns
Norman H. Rogers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fisons Ltd
Original Assignee
Fisons Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fisons Ltd filed Critical Fisons Ltd
Application granted granted Critical
Publication of CA962689A publication Critical patent/CA962689A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4
    • C07D311/24—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
CA142,944A 1971-06-10 1972-05-25 Benzopyran derivatives Expired CA962689A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1983771 1971-06-10
GB4547271 1971-09-30
GB522772*[A GB1382247A (en) 1971-06-10 1972-02-04 Benzopyran derivatives

Publications (1)

Publication Number Publication Date
CA962689A true CA962689A (en) 1975-02-11

Family

ID=27254604

Family Applications (1)

Application Number Title Priority Date Filing Date
CA142,944A Expired CA962689A (en) 1971-06-10 1972-05-25 Benzopyran derivatives

Country Status (8)

Country Link
CA (1) CA962689A (en)
CH (2) CH552582A (en)
DE (1) DE2228075A1 (en)
FR (1) FR2140603B1 (en)
GB (1) GB1382247A (en)
IL (1) IL39467A (en)
NL (1) NL7208007A (en)
SE (1) SE375773B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1448980A (en) * 1973-01-19 1976-09-08 Fisons Ltd Unsymmetrically substituted bis-chromones

Also Published As

Publication number Publication date
CH557812A (en) 1975-01-15
CH552582A (en) 1974-08-15
SE375773B (en) 1975-04-28
DE2228075A1 (en) 1972-12-21
NL7208007A (en) 1972-12-12
FR2140603A1 (en) 1973-01-19
IL39467A0 (en) 1972-07-26
IL39467A (en) 1974-12-31
GB1382247A (en) 1975-01-29
FR2140603B1 (en) 1976-03-05

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